PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Once a chemistry teacher gave us an explanation which I have no idea if it is true or not but here it goes, when lightning passes through the air the energy causes Nitrogen and Oxygen atoms to react to form different types of nitrous oxides.
http://www.w3.org/ns/prov#wasQuotedFrom
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